Lock.



L. P. WENZELL.

LOCK.

APPLICA'HON meu simu. 1918.

l ,ZQQQ Patented Feb. 25, 1919.

C11/Wow m @Nin earns Parana errno.

LEwIs P. wENTzELL, E GEEENSBUEG, PENNSYLVANIA. f

' LOCK.

Application led September 11, 1918.

To all whom t may concern:

Be it known that I, LEWIS P. WENTZELL, a citizen of the United States, residing at Greensburg, in the county of Westmoreland and State of Pennsylvania, have invented new and useful Improvements in Locks, of which the following is a specification.

This invention relates to a lock and more particularly to an improved form of lock for locking a lever in a plurality of positions and has for its primary object to provide a lock that will eectively lock a switch throwing lever in either of its two positions without the necessity of more than one lock of an inexpensive construction.

An object of the invention is to provide a lock of simple construction the casing of which being constructed to take the place of the weight usually associated with a swltch throwing lever.

Fig. 4 is a diagrammatic view showingthe invention in userupon a switch throwing lever.

t the start I wish to call attention to the fact that although I have described and shown my invention coperating with a switch throwing lever the same may be used in a plurality of other manners than illustrated.

That form of my invention illustrated in thev drawing consists of a casing 1 weighted for facilitating the throwing of the lever 2. This casing 1 is rotatably mounted on the lever 2 as shown at y3 so that the casing may be rotated upon the lever in the throwing of the latter. The under surface of the Specification of Letters Patent.

Patented Feb. 25, 1919.

Serial No. 253,582.

casing 1 is recessed as indicated at 4 so as to receive the locking mechanism 5. This locking mechanism consists of a pawl swing'- ingly mounted on a pin 7 and is provided with a cam shaped extremity 8 and adapted to engage the stationary catch 9. In the particular showing there are two of these catches 9 arranged at the two positions that the lever 2 is to assume. The hook shaped extremity 8 is provided with a cam face 10 to facilitate engagement of the pawl 6 with the catch 9. The remaining extremity 11 of the pawl which is of a curved formation is arranged to be engaged by an arm 12 for retracting the pawl ont of engage ment withvthe catch 9. This arm 12 is fixed on a shaft 13 journaled in the casing 11 with one end thereto arranged opposite an opening 14 in the casing and provided with. a key receiving recess 15 which may be of any conguration. To complete the invention I provide a handle 16 for turning the casing l upon the lever 2.

From the foregoing description taken in connection with the accompanying drawing it should be apparent that upon gripping the handle 16 the lever 2 may be thrown from its full line position, Fig. 4, to its dotted line position and at the same time the easing 1 may be rotated on the lever 2 so that the recess 4 may be brought into registration with a catch 9 for allowing engagement between the catch and pawl. It is of course to be understood that the invention may be constructed in various other manners than shown and the parts may be associated in dil'erent manners and therefore I do not desire t0 be limited in any manner except as set forth in the claims hereunto appended.

Having described my invention, what I claim is:

1. In combination with a pivoted lever adapted to assume two positions, a stationary catch arranged at each position of the lever, a lock casing rotatably mounted on the lever, a pivoted pawl within the casing adapted to engage either of said catches, a handle upon the casing and a key operated zuni for moving the pewl to inoperative position.

2. In combination with a pivoted lever adaptedto swing to. two horizontal posi-- tions, a stationary catch arrangedy at each position of the lever, a lock easing rotatably7 mounted on the lever and .having its under surface recessed, a pivoted pawl arranged in the recess of the case and adapted to engage either of said catches and a handle l( for rotating the casing on the lever and for moving the latter.

In testimony whereof I aflix my signature.

LEWIS P. WENTZELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

